Delignification of biomass containing lignin and production of adhesive and methods of making lignin cellulose compositions

Abstract

Delignification of biomass consisting of plants containing lignin is done by utilizing an amino compound in an aqueous solution or emulsion to produce water soluble amino lignin and non-soluble amino lignin cellulose which are utilized to produce adhesives and resins for use to produce wood composites and carbohydrate production.

I claim: 
     
       1. An adhesive composition comprising at least one amino compound reacted with at least one biomass containing a lignin component and, at least one plant protein material, wherein the adhesive is free of aldehydes and known cancer causing compounds. 
     
     
       2. The adhesive composition according to  claim 1  wherein the biomass comprises lignin or a lignocellulose material selected from amino lignocellulose, trees, agricultural residues, wood residues, bagasses, lignin-containing waste paper and, mixtures thereof 
     
     
       3. The adhesive composition according to  claim 1  wherein the amino comprises a compound is selected from the group consisting of urea, melamine, biuret, guanidine, aminoguanidine, guanidine carbonate, urea guanidine condensates, urea polyamine condensates, urea-melamine condensates, urea-cyandiamide, urea-aminoguanidine condensate, urea-cyanoguanidine condensate, and mixtures thereof. 
     
     
       4. The adhesive composition according to  claim 1  wherein the amino compound comprises urea. 
     
     
       5. The adhesive composition according to  claim 1  wherein the amino compound comprises melamine. 
     
     
       6. The adhesive composition according to  claim 1  wherein the plant protein material comprises a protein selected from the group consisting of soy, corn, oats, wheat, barley, rice, potato and mixtures thereof. 
     
     
       7. The adhesive composition according to  claim 1  wherein the plant protein material is a flour.